An Arbitrary Address Write issue in the Autodesk DWG application can allow a malicious user to leverage the application to write in unexpec…

published 2021-06-25 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13814

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

An Arbitrary Address Write issue in the Autodesk DWG application can allow a malicious user to leverage the application to write in unexpected paths. In order to exploit this the attacker would need the victim to enable full page heap in the application.

Patch / fix

fixed in 11

autodesk advance_steel 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk autocad 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk autocad_architecture 2019.1.3, 2020.1.4, 2021.1.1
autodesk autocad_electrical 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk autocad_lt 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk autocad_map_3d 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk autocad_mechanical 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk autocad_mep 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk autocad_plant_3d 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk civil_3d 2019.1.3, 2020.1.4, 2021.1.1, 2022.0.1
autodesk dwg_trueview 2022.1.1

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

n/a Autodesk Advanced Steel, Civil 3D, AutoCAD, AutoCAD LT, AutoCAD Architecture, AutoCAD Electrical, AutoCAD Map 3D, AutoCAD Mechanical, AutoCAD MEP, AutoCAD Plant 3D

Classification

Weakness

CWE-787 Out-of-bounds Write

References

autodesk.com /trust/security-advisories/adsk-sa-2022-0007
vendor-advisory

Sources

CVE List CVE-2021-27043
NVD CVE-2021-27043

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary